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https://www.readbyqxmd.com/read/27925387/microcomputed-tomography-evaluation-of-volumetric-shrinkage-of-bulk-fill-composites-in-class-ii-cavities
#1
Hamad Algamaiah, Camila S Sampaio, Lindiane C Rigo, Malvin N Janal, Marcelo Giannini, Estevam A Bonfante, Paulo G Coelho, Andre F Reis, Ronaldo Hirata
PURPOSE: This study aimed to quantify polymerization shrinkage of one conventional and three bulk-fill composites, under bonded and unbonded conditions, in Class II preparations using 3D microcomputed tomography (μCT) and report its location. MATERIALS AND METHODS: Preparations (2.5 mm occlusal depth × 4 mm wide × 4 mm mesial box and 1 mm beyond the CEJ distal box depth) were made in 48 human extracted molars (n = 6). Four composites were tested, one regular (Vitalescence/VIT) and three bulk-fill: SureFil SDR Flow (SDR), Tetric EvoCeram Bulk Fill (TET), and Filtek flowable Bulk Fill (FIL)...
December 7, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27901205/six-month-color-change-and-water-sorption-of-9-new-generation-flowable-composites-in-6-staining-solutions
#2
Maria Arregui, Luis Giner, Marco Ferrari, Marta Vallés, Montserrat Mercadé
Color match and water sorption are two factors that affect restorative materials. Discoloration is essential in the lifespan of restorations. The aim of this study was to evaluate color change and water sorption of nine flowable composites at multiple time points over 6 months. 60 samples of each composite were divided into two groups (Color Change and Water Sorption/Solubility). Each Color Change group was divided into six subgroups, which were immersed in distilled water (DW), coffee (CF), Coca-Cola (CC), red wine (RW), tea (TE) and orange juice (OJ)...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27892839/influence-of-adhesive-type-and-placement-technique-on-postoperative-sensitivity-in-posterior-composite-restorations
#3
Trf Costa, M Rezende, A Sakamoto, B Bittencourt, P Dalzochio, A D Loguercio, A Reis
PURPOSE: This double blind, randomized clinical trial compared the postoperative sensitivity of the placement technique (incremental and bulk fill) in posterior composite resin restorations bonded with two different adhesive strategies (self-etch and etch-and-rinse). METHODS: Posterior dental cavities of 72 participants (n=236), with a cavity depth of at least 3 mm, were randomly divided into four groups. The restorations were bonded using either the etch-and-rinse Tetric N-Bond (Ivoclar Vivadent) or the self-etch Tetric N-Bond SE (Ivoclar Vivadent)...
November 28, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27892836/comparison-of-internal-adaptation-in-class-ii-bulk-fill-composite-restorations-using-micro-ct
#4
S H Han, S H Park
PURPOSE: This study compared the internal adaptation of bulk-fill composite restorations in class II cavities and explored the relationship between internal adaptation and polymerization shrinkage or stress. METHODS AND MATERIALS: Standardized mesio-occluso-distal cavities were prepared in 40 extracted human third molars and randomly divided into five groups (n=8). After having been applied by total-etch XP bond (Dentsply Caulk, Milford, DE, USA) and light curing, the teeth were restored with the following resin composites: group 1, Filtek Z350 (3M ESPE, St...
November 28, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27885743/influence-of-polymerisation-method-and-type-of-fibre-on-fracture-strength-of-endodontically-treated-teeth
#5
Neslihan Tekçe, Kansad Pala, Safa Tuncer, Mustafa Demirci, Merve Efe Serim
The aim of this study was to investigate (i) the effect of direct or indirect polymerisation of adhesive-impregnated ribbon fibre under 4-mm bulk-filled composites on fracture strength; (ii) to compare polyethylene ribbon fibre-reinforcement composites with short fibre-reinforced composite; and (iii) the effectiveness of polyethylene ribbon fibre according to the restorative materials used (low-viscous bulk-fill composite, high-viscous flowable composite or conventional paste composite). Seventy molars were divided into seven groups; (groups 1-2) Ribbond-reinforced Surefil-SDR; (group 3) Ribbond-reinforced G Aenial Flo; (group 4) Ribbond-reinforced G Aenial Posterior; (group 5) short fibre-reinforced composite everX Posterior; (group 6) unfilled cavity; (group 7) intact teeth...
November 25, 2016: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/27882021/compressive-strength-and-the-effect-of-duration-after-photo-activation-among-dual-cure-bulk-fill-composite-core-materials
#6
Fahad Alkhudhairy, Fahim Vohra
OBJECTIVES: To assess compressive strength and effect of duration after photoactivation on the compressive strength of different dual cure bulk fill composites. METHODS: Seventy-two disc shaped (4x10mm) specimens were prepared from three dual cure bulk fill materials, ZirconCore (ZC) (n=24), MulticCore Flow (MC) (n=24) and Luxacore Dual (LC) (n=24). Half of the specimens in each material were tested for failure loads after one hour [MC1 (n=12), LC1 (n=12) & ZC1 (n=12)] and the other half in 7 days [MC7 (n=12), LC7 (n=12), ZC7 (n=12)] from photo-polymerization using the universal testing machine at a cross-head speed of 0...
September 2016: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/27843942/color-matching-and-blending-effect-of-universal-shade-bulk-fill-resin-composite-in-resin-composite-models-and-natural-teeth
#7
Rasha M Abdelraouf, Nour A Habib
Objectives. To assess visually color-matching and blending-effect (BE) of a universal shade bulk-fill-resin-composite placed in resin-composite-models with different shades and cavity sizes and in natural teeth (extracted and patients' teeth). Materials and Methods. Resin-composite-discs (10 mm × 1 mm) were prepared of universal shade composite and resin-composite of shades: A1, A2, A3, A3.5, and A4. Spectrophotometric-color-measurement was performed to calculate color-difference (ΔE) between the universal shade and shaded-resin-composites discs and determine their translucency-parameter (TP)...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27836116/effect-of-layer-thickness-on-the-elution-of-bulk-fill-composite-components
#8
Lena Rothmund, Franz-Xaver Reichl, Reinhard Hickel, Panorea Styllou, Marianthi Styllou, Kai Kehe, Yang Yang, Christof Högg
OBJECTIVE: An increment layering technique in a thickness of 2mm or less has been the standard to sufficiently convert (co)monomers. Bulk fill resin composites were developed to accelerate the restoration process by enabling up to 4mm thick increments to be cured in a single step. The aim of the present study is to investigate the effect of layer thickness on the elution of components from bulk fill composites. METHODS: The composites ELS Bulk fill, SDR Bulk fill and Venus Bulkfill were polymerized according to the instruction of the manufacturers...
November 8, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/27820696/influence-of-the-compliance-and-layering-method-on-the-wall-deflection-of-simulated-cavities-in-bulk-fill-composite-restoration
#9
Y-J Kim, R Kim, J L Ferracane, I-B Lee
The aim of this study was to investigate the effects of the layering method and compliance on the wall deflection of simulated cavities in bulk-fill and conventional composite restorations and to examine the relationships between the wall deflection and the polymerization shrinkage, flexural modulus, and polymerization shrinkage stress of composites. Six light-cured composites were used in this study. Two of these were conventional methacrylate-based composites (Filtek Z250 and Filtek Z350 XT Flowable [Z350F]), whereas four were bulk-fill composites (SonicFill, Tetric N-Ceram Bulk-Fill, SureFil SDR Flow [SDR], and Filtek Bulk-Fill)...
November 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27820694/degradation-potential-of-bulk-versus-incrementally-applied-and-indirect-composites-color-microhardness-and-surface-deterioration
#10
M El Gezawi, D Kaisarly, H Al-Saleh, A ArRejaie, F Al-Harbi, K H Kunzelmann
This study investigated the color stability and microhardness of five composites exposed to four beverages with different pH values. Composite discs were produced (n=10); Filtek Z250 (3M ESPE) and Filtek P90 (3M ESPE) were applied in two layers (2 mm, 20 seconds), and Tetric N-Ceram Bulk Fill (TetricBF, Ivoclar Vivadent) and SonicFill (Kerr) were applied in bulk (4 mm) and then light cured (40 seconds, Ortholux-LED, 1600 mW/cm(2)). Indirect composite Sinfony (3M ESPE) was applied in two layers (2 mm) and cured (Visio system, 3M ESPE)...
November 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27725516/effects-of-bleaching-agent-on-physical-and-aesthetic-properties-of-restorative-materials
#11
Eva Klaric Sever, Nika Simenc, Mario Rakic, Hrvoje Skenderovic, Ivan Sever, Zrinka Tarle
To investigate the effects of bleaching agent on microhardness, color and light transmission of different restorative materials. Specimens (n=20) of Tetric EvoCeram (TEC), Tetric EvoCeram Bulk Fill (TECBF) and Equia Fill (EQUIA) were treated with either 40% hydrogen peroxide Opalesence Boost or destilled water for 45 min. Specimens were stained in tea solution or stored in deionized water for one and two weeks. Color, microhardness and light transmission were monitored at the baseline, after the bleaching and after the tea immersion or storage in deionized water...
2016: Dental Materials Journal
https://www.readbyqxmd.com/read/27713454/posterior-bulk-filled-resin-composite-restorations-a-5-year-randomized-controlled-clinical-study
#12
(no author information available yet)
No better clinical outcome for bulk-filled resin composites.
October 7, 2016: British Dental Journal
https://www.readbyqxmd.com/read/27689769/microcomputed-tomography-evaluation-of-polymerization-shrinkage-of-class-i-flowable-resin-composite-restorations
#13
C S Sampaio, K-J Chiu, E Farrokhmanesh, M Janal, R M Puppin-Rontani, M Giannini, E A Bonfante, P G Coelho, R Hirata
The present study aimed to characterize the pattern and volume of polymerization shrinkage of flowable resin composites, including one conventional, two bulk fill, and one self-adhesive. Standardized class I preparations (2.5 mm depth × 4 mm length × 4 mm wide) were performed in 24 caries-free human third molars that were randomly divided in four groups, according to the resin composite and adhesive system used: group 1 = Permaflo + Peak Universal Bond (PP); group 2 = Filtek Bulk Fill + Scotchbond Universal (FS); group 3 = Surefil SDR + XP Bond (SX); and group 4 = Vertise flow self-adhering (VE) (n=6)...
September 30, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27686259/local-deformation-fields-and-marginal-integrity-of-sculptable-bulk-fill-low-shrinkage-and-conventional-composites
#14
Vesna Miletic, Dejan Peric, Milos Milosevic, Dragica Manojlovic, Nenad Mitrovic
OBJECTIVE: To compare strain and displacement of sculptable bulk-fill, low-shrinkage and conventional composites as well as dye penetration along the dentin-restoration interface. METHODS: Modified Class II cavities (N=5/group) were filled with sculptable bulk-fill (Filtek Bulk Fill Posterior, 3M ESPE; Tetric EvoCeram Bulk Fill, Ivoclar Vivadent; fiber-reinforced EverX Posterior, GC; giomer Beautifil Bulk, Schofu), low-shrinkage (Kalore, GC), nanohybrid (Tetric EvoCeram, Ivoclar Vivadent) or microhybrid (Filtek Z250, 3M ESPE) composites...
September 26, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/27671178/an-in-vitroevaluation-of-microleakage-at-the-cervical-margin-between-two-different-class-ii-restorative-techniques-using-dye-penetration-method
#15
Noor-Ul-Ain Jawaed, Syed Yawar Ali Abidi, Fazal-Ur-Rehman Qazi, Shahbaz Ahmed
OBJECTIVE: To evaluate the coronal microleakage of packable composite using conventional incremental and posterior bulk fill flowable composite using Smart Dentine Replacement Single Step technique in the cervical margins of class II cavities in dentine using the dye penetration method. STUDY DESIGN: In-vitroInterventional study. PLACE AND DURATION OF STUDY: Department of Operative Dentistry, Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences (DIKIOHS), Karachi, from November 2012 to April 2013...
September 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/27665971/degree-of-conversion-of-a-self-adhesive-endodontic-sealer-when-used-as-bulk-material
#16
Silvia C Pérez-González, Victoria Bolaños-Carmona, María M Pérez-Gómez, Santiago González-López
This study tested the null hypothesis that the opacity of RealSeal SE (RSSE) sealer makes light-curing inefficient, while the degree of conversion (DC) is similar regardless of curing method. Fourteen uniradicular teeth were sectioned at 15 mm from the apex. Root canals were instrumented using the Reciproc file system, bulk-filled with RSSE, and divided randomly into two groups (dual-cure or self-cure). DC was determined by micro-Raman spectroscopy at 24 h, 48 h, and 1 week after filling, at 6, 9, and 12 mm from the coronal end...
2016: Journal of Oral Science
https://www.readbyqxmd.com/read/27665967/cytotoxic-effects-of-bulk-fill-composite-resins-on-human-dental-pulp-stem-cells
#17
Reyhan Şişman, Ayça Aksoy, Muhammet Yalçın, Erdal Karaöz
Five bulk fill composite resins, including SDR, Tetric EvoCeram Bulk Fill (TEC), X-trafil (XTF), Sonic Fill (SF), Filtek Bulk Fill (FBF), were used in this study. Human dental pulp stem cells were cultured in 12-well culture dishes (3 × 104 cells per cm(2)) and stored in an incubator at 37°C and 5% CO2 for 1 day. On days 1, 7, 14, and 21 of co-culture, viable cells were measured using a WST-1 assay. Lower cell viability was observed with XTF and SDR bulk fill composite resins compared to the control group during the WST-1 assay...
2016: Journal of Oral Science
https://www.readbyqxmd.com/read/27622656/-not-available
#18
Tobias T Tauböck, Thomas Attin
Bulk-fill resin composites represent an innovative class of dental composite materials, developed to simplify and expedite the restoration process. They can be adequately photopolymerized up to 4–5mm composite thickness and therefore permit a more economical restorative approach as compared to conventional resin composites. The current paper summarizes the most important facts on bulk-fill composite materials and provides recommendations for the successful use of these materials in daily practice based on upto-date in vitro and in vivo research...
2016: Swiss Dental Journal
https://www.readbyqxmd.com/read/27613613/influence-of-increment-thickness-on-dentin-bond-strength-and-light-transmission-of-composite-base-materials
#19
Tarek A Omran, Sufyan Garoushi, Aous A Abdulmajeed, Lippo V Lassila, Pekka K Vallittu
OBJECTIVES: Bulk-fill resin composites (BFCs) are gaining popularity in restorative dentistry due to the reduced chair time and ease of application. This study aimed to evaluate the influence of increment thickness on dentin bond strength and light transmission of different BFCs and a new discontinuous fiber-reinforced composite. MATERIALS AND METHODS: One hundred eighty extracted sound human molars were prepared for a shear bond strength (SBS) test. The teeth were divided into four groups (n = 45) according to the resin composite used: regular particulate filler resin composite: (1) G-ænial Anterior [GA] (control); bulk-fill resin composites: (2) Tetric EvoCeram Bulk Fill [TEBF] and (3) SDR; and discontinuous fiber-reinforced composite: (4) everX Posterior [EXP]...
September 10, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27609380/-comparison-of-wear-resistance-and-flexural-strength-of-three-kinds-of-bulk-fill-composite-resins
#20
Huan Zhang, Meng-Long Zhang, Li-Hong Qiu, Jing-Tao Yu, Fu-Liang Zhan
PURPOSE: To compare the abrasion resistance and flexure strength of three bulk-fill resin composites with an universal nano-hybrid composite resins. METHODS: The specimens were prepared with three kinds of bulk fill composites (SDR , sonicfill, Tetric N-Ceram Bulk Fill) and an universal nano-hybrid composite resins(Herculite Precis). 10 mm in diameter × 2mm in height specimens were prepared for abrasion resistance, while 2 mm in width × 2 mm in depth×25 mm in length specimens were prepared for flexure strength...
June 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
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